Looking for a lift!!!
I've had all types,, for convenience a two post is great..
If you never work on tall vehicles, (vans, 4x4's).. I found the two post with over-head cables, allowed the use of a trans jack, etc,, without fighting with an above floor tunnel, where cables go UNDER the vehicle, to the other side..
I had both kinds, side by side..
I now have, and prefer, a 2 post, cables under, and I put taller casters on my trans-jack , to clear the tunnel...
my .02